22549457 has 12 divisors (see below), whose sum is σ = 26334000. Its totient is φ = 19252296.

The previous prime is 22549441. The next prime is 22549469. The reversal of 22549457 is 75494522.

It is not a de Polignac number, because 22549457 - 2⁴ = 22549441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22549457.

It is not an unprimeable number, because it can be changed into a prime (22549427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14294 + ... + 15792.

It is an arithmetic number, because the mean of its divisors is an integer number (2194500).

Almost surely, 2^22549457 is an apocalyptic number.

It is an amenable number.

22549457 is a deficient number, since it is larger than the sum of its proper divisors (3784543).

22549457 is a wasteful number, since it uses less digits than its factorization.

22549457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 1813 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 22549457 is about 4748.6268541548. The cubic root of 22549457 is about 282.5175053762.

It can be divided in two parts, 2254 and 9457, that added together give a palindrome (11711).

The spelling of 22549457 in words is "twenty-two million, five hundred forty-nine thousand, four hundred fifty-seven".